An adjustable vibration isolation mount and method of controlling the same

Abstract

The application provides an adjustable vibration isolation base and a control method thereof. The vibration isolation base comprises a booster pump, a driving member, a guide rail, a perforated plate, an intermediate base plate, a bottom rib plate, and an air bag arranged between the intermediate base plate and the bottom rib plate. The guide rail extends from top to bottom, and the air bag is in communication with the booster pump. The perforated plate and the intermediate base plate cooperate to form a sound absorption structure, and the intermediate base plate, the air bag and the bottom rib plate cooperate to form a vibration isolation structure. The intermediate base plate is arranged on the guide rail in a liftable manner through the driving member. The adjustable vibration isolation base provided by the application combines the vibration isolation structure and the sound absorption structure, and the intermediate base plate is arranged in a movable manner. The height can be adjusted through the gear position of the driving member, and then the volume of the sound absorption structure and the thickness of the air bag in the vibration isolation structure are synchronously adjusted. Meanwhile, the air pressure of the air bag can be adjusted through the gear position of the booster pump. Finally, the sound absorption and vibration isolation comprehensive performance of the adjustable vibration isolation base can be adjusted through the gear positions of the driving member and the booster pump.

Description

Technical Field

[0001] This invention relates to the field of vibration isolation base and control technology, and in particular to an adjustable vibration isolation base and its control method. Background Technology

[0002] With the development of larger and faster ships, the vibration and noise intensity of ship machinery and equipment has greatly increased. Meanwhile, the requirements for ship vibration comfort are becoming increasingly stringent, making vibration and noise an important indicator that cannot be ignored in ship design and manufacturing. Vibration and noise in ship cabins mainly originate from various rotating mechanical equipment.

[0003] Currently, vibration control measures for ships mainly focus on isolating vibrations from mechanical equipment, such as through vibration isolation bases like airbags. The aim is to reduce or isolate the further transmission of vibrations to surrounding structures. However, perforated plate sound-absorbing cavities and airbag-layered vibration isolation bases are often designed for specific operating conditions of ship machinery. This means that once designed and manufactured, these bases only provide good sound absorption and vibration reduction performance for that specific type of equipment. As ship navigation conditions become increasingly complex, traditional perforated plate sound-absorbing cavities and airbag-layered vibration isolation bases are gradually becoming insufficient to meet the multi-condition operating requirements of ship machinery. Therefore, there is an urgent need to design an adjustable vibration isolation base and its control method that can adapt to multiple operating conditions for ship machinery. Summary of the Invention

[0004] This invention provides an adjustable vibration isolation base and its control method to solve the problems of traditional perforated plate sound absorption cavities, which usually achieve passive sound absorption based on acoustic cavity resonance. That is, once the structural parameters are determined, it is difficult to change the sound absorption performance, resulting in poor adaptability.

[0005] This invention provides an adjustable vibration isolation base, comprising:

[0006] The booster pump, drive unit, guide rail, perforated plate, intermediate base plate, bottom rib plate and airbag disposed between the intermediate base plate and the bottom rib plate are arranged at intervals from top to bottom.

[0007] The guide rail extends from top to bottom, and the airbag is connected to the booster pump; the perforated plate and the intermediate base plate cooperate to form a sound-absorbing structure, and the intermediate base plate, the airbag and the bottom rib plate cooperate to form a vibration isolation structure; the intermediate base plate is driven by a driving component to be raised and lowered on the guide rail to adjust the sound absorption performance of the sound-absorbing structure and the vibration isolation performance of the vibration isolation structure.

[0008] According to the adjustable vibration isolation base provided by the present invention, the adjustable vibration isolation base further includes:

[0009] A noise measuring instrument used to collect noise power;

[0010] Vibration sensors are used to collect vibration intensity.

[0011] The server, electrically connected to the noise measuring instrument, the vibration sensor, the booster pump, and the drive unit, is used to acquire the noise power and vibration intensity of the drive unit at different drive positions and the booster pump at different adjustment positions, so as to generate the overall noise power level and the vibration intensity of the adjustable vibration isolation base; normalize the overall noise power level and the vibration intensity under different combinations to determine the comprehensive sound absorption performance evaluation value of the adjustable vibration isolation base; determine the optimal adjustment parameters based on the comprehensive performance evaluation value and control the booster pump and the drive unit accordingly; the adjustment parameters include the drive position of the drive unit and the adjustment position of the booster pump.

[0012] The present invention also provides a control method for an adjustable vibration isolation base, comprising:

[0013] The total noise power of the drive component and the vibration intensity of the adjustable vibration isolation base are obtained under different drive positions and different adjustment positions of the booster pump.

[0014] The overall noise power level and vibration intensity under different combinations are normalized to determine the comprehensive sound absorption performance evaluation value of the adjustable vibration isolation base;

[0015] Based on the comprehensive performance evaluation value, the optimal adjustment parameters are determined, including the drive gear of the drive component and the adjustment gear of the booster pump.

[0016] According to the control method for the adjustable vibration isolation base provided by the present invention, the step of obtaining the total noise power level includes:

[0017] The time-series signal of noise power is acquired and segmented to form a power spectrum over a period of time;

[0018] The total noise power level is generated based on the power spectrum.

[0019] According to the control method of the adjustable vibration isolation base provided by the present invention, the noise is within a certain period of time [t] a , t b The power spectrum of ] is X(t a , t b The overall noise power level is X. s ;

[0020] X(t a , t b )=[X(f1),X(f2),…,X(f p )];

[0021] X s =sum[X(f1),X(f2),…,X(f p )];

[0022] in, f s The sampling frequency.

[0023] According to the control method of the adjustable vibration isolation base provided by the present invention, the bottom stiffener is provided with a vibration sensor for detecting vibration intensity.

[0024] According to the control method for the adjustable vibration isolation base provided by the present invention, the step of obtaining the total noise power level of the driving component and the vibration intensity of the adjustable vibration isolation base under different driving positions and different adjustment positions of the booster pump includes:

[0025] The drive unit is combined with m drive positions and the booster pump is combined with n adjustment positions to obtain m×n total noise power levels and m×n vibration intensities.

[0026] The control method for the adjustable vibration isolation base provided by the present invention includes a normalization process, comprising:

[0027] For each of the m×n total noise power levels X s Normalize the vibration intensity V;

[0028]

[0029] Wherein, min(X) s ) and max(X s ) are m×n power stages X s The minimum and maximum values ​​of the vibration intensities V are min(V) and max(V), respectively, which are the minimum and maximum values ​​of the m×n vibration intensities V.

[0030] According to the control method of the adjustable vibration isolation base provided by the present invention, the comprehensive sound absorption performance evaluation value

[0031] Where α+β=1, and α,β≥0.

[0032] According to the control method of the adjustable vibration isolation base provided by the present invention, the comprehensive sound absorption performance evaluation value μ is negatively correlated with the sound absorption and vibration isolation performance of the adjustable vibration isolation base.

[0033] The adjustable vibration isolation base and its control method provided by this invention integrate vibration isolation structure and sound absorption structure. The adjustable sound-absorbing vibration isolation base is designed with a movable intermediate base plate, whose height can be adjusted by the gear position of the driving component, thereby simultaneously adjusting the volume of the sound-absorbing structure and the thickness of the airbag in the vibration isolation structure. At the same time, a booster pump is deployed, and the air pressure of the airbag can be adjusted by the gear position of the booster pump. Finally, the overall sound absorption and vibration isolation performance of the adjustable vibration isolation base can be adjusted by the gear position of the driving component and the booster pump. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the sound-absorbing and vibration-damping base provided by the present invention.

[0036] Figure 2 This is a schematic diagram of the sound-absorbing and vibration-damping base provided by the present invention installed in a ship's cabin.

[0037] Figure 3 This is one of the flowcharts illustrating the control method for the adjustable vibration isolation base provided by the present invention.

[0038] Figure 4 This is the second flowchart illustrating the control method for the adjustable vibration isolation base provided by this invention.

[0039] Figure 5 This is a schematic diagram of the control system of the adjustable vibration isolation base provided by the present invention.

[0040] Figure 6 This is a schematic diagram of the electronic device provided by the present invention.

[0041] Figure label:

[0042] 10. Perforated plate; 101. Perforation; 20. Intermediate substrate; 30. Bottom stiffener; 40. Sound-absorbing structure; 50. Vibration-isolation structure; 60. Booster pump; 70. Drive component; 80. Guide rail; 90. Noise meter; 100. Vibration sensor; 110. Server; 510. Acquisition module; 520. Processing module; 530. Determination module; 610. Processor; 620. Communication interface; 630. Memory; 640. Communication bus. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0044] The following is combined with Figure 1 and Figure 2 This invention describes an adjustable vibration isolation base, primarily used in marine machinery. It includes a booster pump 60, a drive unit 70, a guide rail 80, a perforated plate 101 10, an intermediate base plate 20, a bottom rib 30 arranged sequentially from top to bottom, and an airbag disposed between the intermediate base plate 20 and the bottom rib 30. The guide rail 80 extends from top to bottom, and the airbag communicates with the booster pump 60. The perforated plate 101 10 and the intermediate base plate 20 cooperate to form a sound-absorbing structure 40, and the intermediate base plate 20, the airbag, and the bottom rib 30 cooperate to form a vibration isolation structure 50. The intermediate base plate 20 is driven by the drive unit 70 to be vertically and flexibly mounted on the guide rail 80 to adjust the sound absorption performance of the sound-absorbing structure 40 and the vibration isolation performance of the vibration isolation structure 50.

[0045] Specifically, the booster pump 60 is used for inflating and deflating the airbag, controlling the internal pressure of the airbag to achieve pressure control. The booster pump 60 is connected to the airbag via pipes or hoses to ensure smooth gas flow in and out of the airbag. The drive unit 70 is responsible for driving the intermediate substrate 20 to move up and down on the guide rail 80, thereby changing the distance between the perforated plate 101 10 and the intermediate substrate 20, as well as the relative position between the intermediate substrate 20 and the bottom rib 30. The drive unit 70 can be an electric, hydraulic, or pneumatic actuator, depending on the actual application scenario and performance requirements. The guide rail 80 provides a stable path for the lifting and lowering of the intermediate substrate 20, ensuring that the intermediate substrate 20 does not deviate from the predetermined trajectory during the lifting and lowering process. The guide rail 80 extends from top to bottom, providing sufficient space for the lifting and lowering of the intermediate substrate 20. The perforated plate 101 10 is located on the top layer and cooperates with the intermediate substrate 20 to form a sound-absorbing structure 40. The perforated design on the perforated plate 101 10 can absorb and disperse sound waves, reducing noise propagation. The intermediate substrate 20, located between the perforated plate 101 and the bottom stiffener 30, is both part of the sound-absorbing structure 40 and an assembly of the vibration-damping structure 50. Raising or lowering the intermediate substrate 20 alters the performance of both the sound-absorbing structure 40 and the vibration-damping structure 50. The bottom stiffener 30, located at the lowest level, provides structural support for the entire base. Together with the intermediate substrate 20 and the airbag, they form the vibration-damping structure 50, reducing the impact of vibration on the surrounding environment. The airbag, positioned between the intermediate substrate 20 and the bottom stiffener 30, can be adjusted by changing its height and pressure, thereby altering the stiffness and damping characteristics of the vibration-damping structure 50.

[0046] The intermediate substrate 20 is raised and lowered by the drive component 70, changing the distance between the perforated plate 101 10 and the intermediate substrate 20, thereby adjusting the sound absorption coefficient and frequency range of the sound-absorbing structure 40. The raising and lowering of the intermediate substrate 20 also changes the relative position between the intermediate substrate 20 and the bottom stiffener 30, thus affecting the stiffness and damping characteristics of the vibration isolation structure 50. By precisely controlling the raising and lowering height of the intermediate substrate 20, fine adjustment of the vibration isolation performance can be achieved.

[0047] The adjustable vibration isolation base provided by this invention integrates a vibration isolation structure 50 and a sound absorption structure 40, and designs an adjustable sound absorption and vibration isolation base. The intermediate base plate 20 is set to be movable, and its height can be adjusted by the position of the drive component 70, thereby simultaneously adjusting the volume of the sound absorption structure 40 and the thickness of the airbag in the vibration isolation structure 50. At the same time, a booster pump 60 is deployed, and the air pressure of the airbag can be adjusted by the position of the booster pump 60. Finally, the overall sound absorption and vibration isolation performance of the adjustable vibration isolation base can be adjusted by the position of the drive component 70 and the booster pump 60.

[0048] In some embodiments, such as Figure 1 and Figure 2As shown, the adjustable vibration isolation base also includes: a noise measuring instrument 90, a vibration sensor 100, and a server 110. The noise measuring instrument 90 is used to collect noise power; the vibration sensor 100 is used to collect vibration intensity; the server 110 is electrically connected to the noise measuring instrument 90, the vibration sensor 100, the booster pump 60, and the drive unit 70, and is used to obtain the noise power and vibration intensity of the drive unit 70 at different drive positions and the booster pump at different adjustment positions, so as to generate the total noise power level and the vibration intensity of the adjustable vibration isolation base; the total noise power level and vibration intensity under different combinations are normalized to determine the comprehensive sound absorption performance evaluation value of the adjustable vibration isolation base; based on the comprehensive performance evaluation value, the optimal adjustment parameters are determined and used to control the booster pump 60 and the drive unit 70; the adjustment parameters include the drive position of the drive unit 70 and the adjustment position of the booster pump.

[0049] In this embodiment, the noise measuring instrument 90 is used to collect noise power in the environment in real time, i.e., the noise intensity and spectral distribution. It is typically installed near the adjustable vibration isolation base or near the noise source to be monitored to ensure the accuracy of the collected noise data. The vibration sensor 100 is used to collect vibration intensity of the base or surrounding environment in real time, including parameters such as vibration amplitude, frequency, and acceleration. It is typically installed at key parts of the base or near the vibration source to be monitored to accurately reflect the vibration isolation effect of the base. The server 110, as the data processing and control center, is electrically connected to the noise measuring instrument 90, vibration sensor 100, booster pump 60, and drive unit 70. It is responsible for receiving, processing, and analyzing data from each sensor and generating control commands based on the analysis results.

[0050] During operation, server 110 first acquires noise power and vibration intensity data for drive unit 70 at different drive positions and booster pump 60 at different adjustment positions. Then, it normalizes this data to eliminate the influence of different measurement conditions and units. Based on the normalized data, server 110 calculates the comprehensive sound absorption performance evaluation value of the adjustable vibration isolation base. This evaluation value comprehensively considers the total noise power level and vibration intensity, reflecting the overall performance of the base under different adjustment parameters. Based on the comprehensive performance evaluation value, server 110 determines the optimal adjustment parameters (including the drive position of drive unit 70 and the adjustment position of booster pump 60) and generates corresponding control commands to send to booster pump 60 and drive unit 70.

[0051] Figure 3 This is one of the flowcharts illustrating the control method for the adjustable vibration isolation base provided by the present invention, such as... Figure 3 As shown, to adapt to different scenarios or situations, the control method includes the following steps:

[0052] Step S301: Obtain the total noise power of the drive unit under different drive positions and different adjustment positions of the booster pump, and the vibration intensity of the adjustable vibration isolation base.

[0053] Step S302: Normalize the total noise power level and vibration intensity under different combinations to determine the comprehensive sound absorption performance evaluation value of the adjustable vibration isolation base.

[0054] Step S303: Based on the comprehensive performance evaluation value, determine the optimal adjustment parameters, including the drive gear of the drive component and the adjustment gear of the booster pump.

[0055] When using this adjustable vibration isolation base, the total noise power level and vibration intensity of the adjustable vibration isolation base are obtained under different adjustment parameters (i.e., different drive gears of the drive component and different adjustment gears of the booster pump).

[0056] The total noise power level is collected and recorded in real time under each drive and adjustment position using a noise meter. The vibration intensity is also collected and recorded in real time under each drive and adjustment position using a vibration sensor. This ensures that the collected data is accurate and comprehensive, reflecting the performance of the base under different adjustment parameters.

[0057] Then, the total noise power level and vibration intensity under different combinations are normalized to eliminate the influence of different measurement conditions and units, thereby obtaining comparable comprehensive performance evaluation values. The collected total noise power level and vibration intensity data are preprocessed, such as removing outliers and smoothing.

[0058] Based on the normalized data, calculate the comprehensive sound absorption performance evaluation value of the adjustable vibration isolation base. This evaluation value can be a comprehensive score or index, reflecting the overall performance of the base under different adjustment parameters. Based on the comprehensive performance evaluation value, determine the optimal adjustment parameters to achieve the best sound absorption and vibration isolation effect.

[0059] Finally, the comprehensive performance evaluation values ​​are sorted or compared to find the optimal combination of adjustment parameters. The best drive gear and booster pump adjustment gear are determined, as these gears correspond to the highest comprehensive performance evaluation values ​​or meet specific performance requirements. The determined optimal adjustment parameters are then sent to the drive components and booster pump to adjust the performance of the base.

[0060] In some embodiments, such as Figure 4 As shown, the steps for obtaining the total noise power level include:

[0061] Step S401: Acquire the time-series signal of noise power and segment it to form a power spectrum over a period of time.

[0062] Step S402: Generate the total noise power level based on the power spectrum.

[0063] Generally, the total power level of cabin noise is most sensitive to operators and is a key parameter affecting the ship's quietness and comfort. Therefore, noise measuring instruments are deployed at the ship's mechanical equipment operating positions to measure and calculate the noise power spectrum near the operating positions in real time, thereby enabling real-time analysis of the total power level corresponding to the noise power spectrum. The specific calculation process for the total power level is as follows:

[0064] First, for a specific operating condition of the ship's machinery and equipment, in [t] a , t b During the time period, the noise measuring instrument collected k data points of the time-series signal Z(t), which are as follows:

[0065] Z(t) = [Z1, Z2, ..., Zt] k ]

[0066] Secondly, for the time-series signal Z(t) collected by the noise meter, power spectrum analysis is performed using software such as MATLAB, LabVIEW, or Origin. The frequency domain is divided into (p-1) parts (p is generally an integer multiple of 512), forming the cabin noise over time [t]. a , t b The power spectrum of ]:

[0067] X(t a , t b )=[X(f1),X(f2),…,X(f p )]

[0068] in, f s This is the sampling frequency of the noise meter.

[0069] Finally, the total power level X corresponding to the noise power spectrum s Let [X(f1), X(f2), ..., X(f)] be the bases of the arrays [f1, X(f2), ..., X(f)]. p The sum of [], therefore, for a certain operating condition of the ship's machinery and equipment, the total power level X of the noise near the cabin operating position can be calculated. s :

[0070] X s =sum[X(f1),X(f2),…,X(f p )]

[0071] like Figure 2 As shown, a vibration sensor for detecting vibration intensity is deployed at the center of the bottom stiffener of the adjustable sound-absorbing and vibration-isolating base. This allows for real-time monitoring of the vibration intensity V of the ship's mechanical equipment after it passes through the base, ensuring that the sensor can accurately capture the vibration signal transmitted from the ship's mechanical equipment to the base and ultimately to the hull.

[0072] In some embodiments, the steps of obtaining the total noise power level of the drive unit and the vibration intensity of the adjustable vibration isolation base under different drive positions and different adjustment positions of the booster pump include: combining the drive unit under m drive positions and the booster pump under n adjustment positions to obtain m×n total noise power levels and m×n vibration intensities.

[0073] In one specific embodiment, the adjustment range of the drive unit (stepper motor) is 1, 2, 3...m (m is a positive integer greater than 3), and the height of the lower panel can be adjusted by adjusting the stepper motor's range, thereby simultaneously adjusting the volume of the sound-absorbing structure and the thickness of the airbag; the adjustment range of the booster pump is 1, 2, 3...n (n is a positive integer greater than 3), and the airbag pressure can be adjusted by adjusting the booster pump's range.

[0074] First, under a certain operating condition of marine machinery, for m types of stepper motor adjustment gears and n types of booster pump adjustment gears, there are a total of m×n adjustment gear combinations, which also correspond to m×n total power levels X in noise power spectrum measurement. s The vibration intensity V measured by the vibration sensor is m×n.

[0075] For sound-absorbing and vibration-isolieving bases, the total power level X measured and analyzed by a noise meter near the operating position is... s The smaller the better; the smaller the vibration intensity V measured by the vibration sensor, the better.

[0076] Then, for each of the m×n power stages X s The vibration intensity V is normalized as follows:

[0077]

[0078] Wherein, min(X) s ) and max(X s ) are m×n power stages X s The minimum and maximum values ​​of the vibration intensity V are min(V) and max(V), respectively.

[0079] Finally, the comprehensive sound absorption performance evaluation value μ of the sound-absorbing and vibration-isolating base can be characterized as:

[0080]

[0081] Where α+β=1, and α,β≥0. α,β can be flexibly adjusted according to the specific needs of the cabin operators for the sound absorption level and vibration isolation performance of the sound-absorbing and vibration-isolating base.

[0082] Ultimately, whenever the operating status of the ship's mechanical equipment changes, the stepper motor and gas booster pump are adjusted to the optimal gear combination to minimize the comprehensive sound absorption performance evaluation value μ of the sound-absorbing and vibration-isolating base. This enables the sound-absorbing and vibration-isolating base to achieve the best comprehensive sound absorption and vibration isolation performance, thereby achieving the goal of adaptive control of the sound-absorbing and vibration-isolating base.

[0083] In summary, this invention integrates a perforated plate sound-absorbing cavity and an airbag-layered vibration-damping base, proposing an adjustable sound-absorbing and vibration-damping base and its control method.

[0084] (1) Integrating vibration isolation structure and sound absorption structure, an adjustable sound absorption and vibration isolation base is designed. The middle substrate is set to be movable, and the height can be adjusted by the gear of the drive component, thereby simultaneously adjusting the volume of the sound absorption structure and the thickness of the airbag in the vibration isolation structure. At the same time, a booster pump is deployed, and the air pressure of the airbag can be adjusted by the gear of the booster pump. Finally, the sound absorption and vibration isolation performance of the adjustable vibration isolation base can be adjusted by the gear of the drive component and the booster pump.

[0085] (2) Generally speaking, the total power level of cabin noise is most sensitive to operators and is also a key parameter affecting the quietness and comfort of the ship. Therefore, noise measuring instruments are deployed at the operating positions of ship machinery and equipment to measure and calculate the noise power spectrum near the operating positions in real time, so as to analyze the total power level X corresponding to the noise power spectrum in real time. s Meanwhile, a vibration sensor is deployed at the center of the bottom stiffener of the sound-absorbing and vibration-isolating base to monitor the vibration intensity V of the ship's mechanical equipment after passing through the sound-absorbing and vibration-isolating base in real time.

[0086] (3) Deploy a server in the compartment where the ship's mechanical equipment is located. When the operating conditions of the ship's mechanical equipment change, adjust the speed of the stepper motor and the gas booster pump in sequence to adjust the overall sound absorption and vibration isolation performance of the sound-absorbing and vibration-isolating base. Record the total power level X measured and analyzed by the noise measuring instrument near the operating position under each speed combination on the server in real time. s And the vibration intensity V monitored in real time by the vibration sensor.

[0087] (4) By analyzing the power stage X s The sound absorption and vibration isolation performance of the sound-absorbing and vibration-isolating base is characterized by normalization with the vibration intensity V, and the optimal combination of stepper motor and gas booster pump is found based on this.

[0088] (5) Whenever the operating status of the ship's mechanical equipment changes, the stepper motor and gas booster pump are adjusted to the optimal gear combination to enable the sound-absorbing and vibration-isolating base to achieve the best comprehensive performance of sound absorption and vibration isolation, thereby achieving the goal of adaptive control of the sound-absorbing and vibration-isolating base.

[0089] The control system of the adjustable vibration isolation base provided in the embodiments of the present invention will be described below. The control system of the adjustable vibration isolation base described below can be referred to in correspondence with the control method described above.

[0090] like Figure 5 As shown, the control system of the adjustable vibration isolation base includes an acquisition module 510, a processing module 520, and a determination module 530. The acquisition module 510 acquires the total noise power level of the drive component at different drive positions and the vibration intensity of the booster pump at different adjustment positions. The processing module 520 normalizes the total noise power level and vibration intensity under different combinations to determine the comprehensive sound absorption performance evaluation value of the adjustable vibration isolation base. The determination module 530 determines the optimal adjustment parameters based on the comprehensive performance evaluation value, including the drive position of the drive component and the adjustment position of the booster pump.

[0091] Figure 6 An example is a schematic diagram of the physical structure of an electronic device, such as... Figure 6 As shown, the electronic device may include a processor 610, a communication interface 620, a memory 630, and a communication bus 640, wherein the processor 610, the communication interface 620, and the memory 630 communicate with each other via the communication bus 640. The processor 610 can call logic instructions in the memory 630 to execute the control method, which includes: obtaining the total noise power level of the drive unit at different drive positions and the vibration intensity of the booster pump at different adjustment positions; normalizing the total noise power level and the vibration intensity under different combinations to determine the comprehensive sound absorption performance evaluation value of the adjustable vibration isolation base; and determining the optimal adjustment parameters based on the comprehensive performance evaluation value, wherein the adjustment parameters include the drive position of the drive unit and the adjustment position of the booster pump.

[0092] It should be noted that the electronic device in this embodiment can be a server, a PC, or other devices, as long as its structure includes the following: Figure 6 The processor 610, communication interface 620, memory 630, and communication bus 640 shown are interconnected via the communication bus 640. The processor 610 can call logical instructions stored in the memory 630 to execute the aforementioned method. This embodiment does not limit the specific implementation of the electronic device.

[0093] Furthermore, the logical instructions in the aforementioned memory 630 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, essentially, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0094] Furthermore, this invention discloses a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium. The computer program includes program instructions, and when the program instructions are executed by a computer, the computer can execute the control method provided in the above-described method embodiments. The control method includes: obtaining the total noise power level of the drive component at different drive positions and the vibration intensity of the adjustable vibration isolation base at different adjustment positions of the booster pump; normalizing the total noise power level and the vibration intensity under different combinations to determine the comprehensive sound absorption performance evaluation value of the adjustable vibration isolation base; and determining the optimal adjustment parameters based on the comprehensive performance evaluation value, wherein the adjustment parameters include the drive position of the drive component and the adjustment position of the booster pump.

[0095] On the other hand, embodiments of the present invention also provide a non-transitory computer-readable storage medium storing a computer program thereon. When executed by a processor, the computer program implements the control methods provided in the above embodiments. The control method includes: acquiring the total noise power level of the drive component at different drive positions and the vibration intensity of the adjustable vibration isolation base at different adjustment positions of the booster pump; normalizing the total noise power level and the vibration intensity under different combinations to determine the comprehensive sound absorption performance evaluation value of the adjustable vibration isolation base; and determining the optimal adjustment parameters based on the comprehensive performance evaluation value, wherein the adjustment parameters include the drive position of the drive component and the adjustment position of the booster pump.

[0096] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0097] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

[0099] The above embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Although the invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the invention do not depart from the spirit and scope of the invention and should be covered within the scope of the claims of the invention.

Claims

1. A control method of an adjustable vibration isolation mount, characterized by, The adjustable vibration isolation base comprises a booster pump, a driving member, a guide rail, a perforated plate, an intermediate base plate, a bottom rib plate, and an air bag arranged between the intermediate base plate and the bottom rib plate; the guide rail extends from top to bottom, the air bag is in communication with the booster pump; the perforated plate and the intermediate base plate cooperate to form a sound absorption structure, and the intermediate base plate, the air bag and the bottom rib plate cooperate to form a vibration isolation structure; the intermediate base plate is driven by the driving member and is arranged on the guide rail in a lifting manner to adjust the sound absorption performance of the sound absorption structure and the vibration isolation performance of the vibration isolation structure. The control method of the adjustable vibration isolation base comprises: obtaining the noise power total level and the vibration intensity of the adjustable vibration isolation base under different driving positions of the driving member and different adjustment positions of the booster pump; normalizing the noise power total level and the vibration intensity under different combinations to determine the comprehensive sound absorption performance evaluation value of the adjustable vibration isolation base; determining the optimal adjustment parameters according to the comprehensive performance evaluation value, wherein the adjustment parameters include the driving position of the driving member and the adjustment position of the booster pump; The comprehensive sound absorption performance evaluation value wherein a+β=1, and a, β≥0, is the normalized total level of the noise, is the normalized intensity of the vibration.

2. The control method of an adjustable vibration isolation mount according to claim 1, wherein, the step of obtaining the noise power total level comprises: collecting time sequence signals of noise power and dividing them to form power spectrum in a period of time; generating the noise power total level based on the power spectrum.

3. The method of claim 2, wherein, The power spectrum of the noise over a period of time [t a , t b ] is X(t a , t b ), and the total noise power level is X s ; X(t a , t b ) = [X(f1), X(f2),..., X(f p )] ; X s = sum [X(f1), X(f2),..., X(f p )]; wherein …, f s is the sampling frequency.

4. The method of claim 1, wherein, The bottom rib plate is provided with a vibration sensor for detecting vibration intensity.

5. The method of claim 1, wherein, The step of obtaining the noise power total level and the vibration intensity of the adjustable vibration isolation base under different driving positions of the driving member and different adjustment positions of the booster pump comprises: combining the driving member in m driving positions and the booster pump in n adjustment positions to obtain mxn noise power total levels and mxn vibration intensities.

6. The method of claim 5, wherein, The step of normalizing comprises: respectively, to mxn of the noise power total levels X s normalization processing is performed on the vibration intensity V. where min(X s ) and max(X s ) are the minimum and maximum values of the m x n power levels X s , respectively, and min(V) and max(V) are the minimum and maximum values of the m x n vibration intensities V, respectively.

7. The method of claim 1, wherein, the comprehensive sound absorption performance evaluation value μ is negatively correlated with the sound absorption and vibration isolation performance of the adjustable vibration isolation base.

8. The method of claim 1, wherein, The adjustable vibration isolation base further comprises: a noise measuring instrument for collecting noise power; a vibration sensor for collecting vibration intensity; a server electrically connected with the noise measuring instrument, the vibration sensor, the booster pump and the driving member, for obtaining the noise power and vibration intensity of the driving member under different driving positions and the noise power and vibration intensity of the booster pump under different adjustment positions, generating the noise power total level and the vibration intensity of the adjustable vibration isolation base, normalizing the noise power total level and the vibration intensity under different combinations to determine the comprehensive sound absorption performance evaluation value of the adjustable vibration isolation base, and determining the optimal adjustment parameters according to the comprehensive performance evaluation value and controlling the booster pump and the driving member based on the optimal adjustment parameters; the adjustment parameters include the driving position of the driving member and the adjustment position of the booster pump.

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